Shake Shack Sundays: Score a Free Chicken Sandwich and Eat "Good”
Sundays just got a whole lot tastier. Shake Shack is bringing back its "Chicken Sunday" deal, offering a free Chicken Shack sandwich with any $10 purchase through June. Plus, check out their new health-forward "Good Fit" menu!
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If you have been looking for a reason to skip the cooking this weekend, Shake Shack has the perfect incentive. Their popular "Chicken Sunday" promotion is back for the first half of 2026. By spending just $10, you can walk away with a free Chicken Shack sandwich, which features a crispy, antibiotic-free chicken breast topped with lettuce, pickles, and buttermilk herb mayo.
This deal is a great way to feed two people on a budget or simply treat yourself to a massive lunch. Because a single burger and a side of crinkle-cut fries usually clear the $10 threshold, unlocking the free sandwich is incredibly easy. Just remember to add the Chicken Shack to your cart before you enter the code CHICKENSUNDAY to see the price drop to zero.
How to Claim
- The Timing: This offer is valid every Sunday from January 4 through June 28, 2026.
- The Spend: Place an order of at least $10 (excluding the cost of the free sandwich) at any participating location.
- The Promo Code: Use code CHICKENSUNDAY at checkout.
- How to Order: You must place your order through the Shack App, the official website, or at an in-Shack kiosk.
- Important Note: This deal is not valid for drive-thru orders or through third-party delivery apps like DoorDash or Uber Eats.
New "Good Fit" Menu: A Healthy Spin on Favorites
While Shake Shack is known for its indulgent burgers and shakes, they have recently dropped a major update for the health-conscious crowd. The brand-new Good Fit Menu is designed to take the guesswork out of ordering for those with specific nutritional goals. Whether you are looking for high protein, lower carbs, or gluten-free options, this curated lineup has you covered.
The standout feature of this new menu is the emphasis on lettuce-wrapped burgers and sandwiches. Instead of the traditional potato bun, you can now easily order your favorite protein wrapped in fresh, crisp green leaf lettuce. This simple swap significantly reduces the carbohydrate count while keeping the iconic flavors you love.
Why the Good Fit Menu is a Game Changer
- Low Carb Options: The Single ShackBurger in a lettuce wrap contains only 3 grams of carbohydrates and 330 calories.
- High Protein: For those focusing on muscle gain or satiety, the Double SmokeShack in a lettuce wrap packs a massive 52 grams of protein.
- Gluten-Free Friendly: In addition to lettuce wraps, they offer a Gluten-Free Double ShackBurger on a dedicated GF bun.
- Intention Matters: This menu is specifically curated for those following modern wellness trends, including GLP-1–friendly diets that prioritize high protein and fiber without refined carbs.
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